%0 Journal Article
%T DOES ACTAEA ASIATICA HAVE THE MOST SYMME TRIC AND PRIMITIVE KARYOTYPE IN THE RANUNCULACEAE?<br>类叶升麻具有毛茛科中最对称和最原始的核型吗?
%A YANG Qin
%A Er
%A <br>杨亲二
%J 植物分类学报
%D 1998
%I 
%X Actaea asiatica was previously reported to have the most symmetric and primitive karyotype, consisting of 10 m and 6 sm chromosomes, which is quite different from those of the remaining species in the genus Actaea, consisting of 10 m , 4 sm and two T chromosomes. In this paper, the chromosomes of this species were re examined. The results show that Actaea asiaticaWTBZ] has the same karyotype as the other species in the genus. Compared with the species in other genera in the tribe Cimicifugeae, i.e. Beesia, Anemonopsis, Souliea and Cimicifuga, Actaea asiatica, together with the remaining species of the genus, has the most asymmetric and thus probably the most advanced karyotype in this tribe because of the presence of two T chromosomes in their chromosome complements. The two T chromosomes may serve as one of the most important cytological markers, by which the species in Actaea are clearly distinguishable cytologically from those in Beesia, Anemonopsis, Souliea and Cimicifuga.
%K Actaea asiatica
%K Karyotype
%K Ranunculaceae<br>类叶升麻
%K 核型
%K 毛茛科
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=ACB22D77D53AF776BE3F554EEA83024E&aid=460BC7C31D0BD5D9FAA0FFD7F2EE5BC5&yid=8CAA3A429E3EA654&vid=933658645952ED9F&iid=B31275AF3241DB2D&sid=D397660E39E3E461&eid=DDDA4F26E8AD3C0E&journal_id=0529-1526&journal_name=植物分类学报&referenced_num=0&reference_num=0